SQL分页语句
一、比较万能的分页:
sql代码:
select top 每页显示的记录数 * from topic where id not in (select top (当前的页数-1)×每页显示的记录数 id from topic order by id desc) order by id desc
需要注意的是在access中不能是top 0,所以如果数据只有一页的话就得做判断了。。
二、SQL2005中的分页代码:
sql代码:
--讲查询出来的结果集作为一张临时表 with tempTable as ( select Row_Number() over (order by id desc) as RowNum, * from tableName ) --从临时表中取得指定行号区间的行 SELECT * FROM tempTable where RowNum between @startIndex and @endIndex
注:ROW_NUMBER() OVER (ORDER BY id desc)为SQL2005新增函数,表示取出每一列的行号
三、分页存储过程SQL代码:
1、第一种UP_GetRecordByPage,包含计算总条数(推荐)
SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ------------------------------------ --用途:分页存储过程 --说明: ------------------------------------ CREATE PROCEDURE [dbo].[UP_GetRecordByPage] @tblName varchar(255), -- 表名 @fldName varchar(255), -- 排序字段名 @PageSize int = 10, -- 页尺寸 @PageIndex int = 1, -- 页码 @IsReCount bit = 0, -- 返回记录总数, 非 0 值则返回 @OrderType bit = 0, -- 设置排序类型, 非 0 值则降序 @strWhere varchar(1000) = \'1=1\' -- 查询条件 (注意: 不要加 where) AS declare @begin int ,@end int,@sql varchar(4000),@order varchar(5) set @begin=@PageSize* (@PageIndex-1) +1 set @end=@begin+@PageSize-1 set @order=\'\' if(@OrderType=1) set @order=\' desc\' set @sql=\' select * from ( select ROW_NUMBER() over(order by \' + @fldName + @order +\' ) as od, * from \'+@tblName +\' where \' + @strWhere + \') as tbl where od between \' + rtrim(ltrim(str(@begin)))+\' and \' + rtrim(ltrim(str(@end))) exec (@sql) if(@IsReCount=1) exec(\'select count(*) from \'+ @tblName+\' where \' +@strWhere)
用法:
/// <summary> /// 分页获取数据列表 /// </summary> public DataSet GetList(int pageSize,int pageIndex,string strWhere,bool isCount) { SqlParameter[] parameters = { new SqlParameter("@tblName", SqlDbType.VarChar, 255), new SqlParameter("@fldName", SqlDbType.VarChar, 255), new SqlParameter("@pageSize", SqlDbType.Int), new SqlParameter("@pageIndex", SqlDbType.Int), new SqlParameter("@IsReCount", SqlDbType.Bit), new SqlParameter("@OrderType", SqlDbType.Bit), new SqlParameter("@strWhere", SqlDbType.VarChar,1000), }; parameters[0].Value = "Whir_MemberDownRuleValue"; parameters[1].Value = "MemberLever"; parameters[2].Value = pageSize; parameters[3].Value = pageIndex; if(isCount){ parameters[4].Value = 1; } else{ parameters[4].Value = 0; } parameters[5].Value = 0; parameters[6].Value = strWhere; return DbHelperSQL.RunProcedure("UP_GetRecordByPage",parameters,"ds"); }
2、sql代码:(不带计算总条数)
SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO -- ============================================= -- Author: 牛腩 -- Create date: 2009-07-22 12:41 -- Description: 分页,用到了ROW_NUMBER() -- ============================================= ALTER PROCEDURE [dbo].[proc_ShowPage] @tblName varchar(255), -- 表名,也可传入inner join内连接 @strGetFields varchar(1000) = \'*\', -- 需要返回的列,默认* @strOrder varchar(255)=\'\', -- 排序的字段名,必填 @strOrderType varchar(10)=\'ASC\', -- 排序的方式,默认ASC @PageSize int = 10, -- 页尺寸,默认10 @PageIndex int = 1, -- 页码,默认1 @strWhere varchar(1500) = \'\' -- 查询条件 (注意: 不要加 where) AS declare @strSQL varchar(5000) if @strWhere !=\'\' set @strWhere=\' where \'+@strWhere set @strSQL= \'SELECT * FROM (\'+ \'SELECT ROW_NUMBER() OVER (ORDER BY \'+@strOrder+\' \'+@strOrderType+\') AS pos,\'+@strGetFields+\' \'+ \'FROM [\'+@tblName+\'] \'+@strWhere+ \') AS sp WHERE pos BETWEEN \'+str((@PageIndex-1)*@PageSize+1)+\' AND \'+str(@PageIndex*@PageSize) exec (@strSQL) print @strSQL -- 测试用,可在查询的时候看到生成的SQL语句